CN102830277A - Signal measurement device and method for end system of generator - Google Patents
Signal measurement device and method for end system of generator Download PDFInfo
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- CN102830277A CN102830277A CN2012101158371A CN201210115837A CN102830277A CN 102830277 A CN102830277 A CN 102830277A CN 2012101158371 A CN2012101158371 A CN 2012101158371A CN 201210115837 A CN201210115837 A CN 201210115837A CN 102830277 A CN102830277 A CN 102830277A
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Abstract
The invention discloses signal measurement device and method for an end system of a generator. The measurement device comprises a first output measurement unit, a second output measurement unit and a remote terminal unit, wherein the measurement device is connected with the remote terminal unit and an energy storage system respectively through transmission equipment; the second output measurement unit is connected with the remote terminal unit and a generator set respectively through the transmission equipment; the remote terminal unit receives a first data signal from the first output measurement unit and a second data signal from the second output measurement unit respectively through the transmission equipment, merges the first data signal with the second data signal, obtains an overall output signal of the generator end system and uploads the overall output signal to a power grid. By applying the signal measurement device, the independent measurement of output force of the energy storage system and the generator set is achieved by adding a group of output measurement units; signal perturbation of access of the energy storage system on the output control of the generator set is avoided, and seamless fusion of the output signal of the energy storage system and the generator end output signal of an original generator is achieved, and meanwhile, the installation cost is reduced.
Description
Technical field
The present invention relates to the power technology field, particularly a kind of signal measurement apparatus and method that is used for the generator end system.
Background technology
Electric system comprises electrical network, the generator and the various consumer of electric energy is provided.It is desirable for the real-time balance of the electric energy that electric energy and consumer consumed that generator provides.For this reason, inserted accumulator system at generator end, electric energy and consumer institute consumed power so that balancing generator was provided improve the stability of whole electric system.
After accumulator system inserts the Power Plant Side generator end; Need the machine of generator be brought out force signal and accumulator system goes out force signal and merges according to the electric access way and the energy exchange situation of reality; Form a reflection generator end overall system actual data-signal of exerting oneself, upload the unit output signal data that feeds back to power network dispatching system to replace original generator end system.How to solve signal that accumulator system inserts generator machine end and merge and handle problems, realize that machine that accumulator system goes out force signal and original generator brings out the seamless fusion of force signal, avoids the accumulator system access that genset is gone out the force control signal disturbance.
Summary of the invention
The embodiment of the invention is to provide a kind of signal measurement apparatus and method that is used for the generator end system; After inserting electrical network, can effectively monitor, and avoid the accumulator system access that genset is gone out the force control signal disturbance the carrying out of exerting oneself of generator end system at accumulator system.
The embodiment of the invention provides a kind of signal measurement apparatus that is used for the generator end system; Said generator end system comprises that the genset, excitation unit, the high factory that are connected with enclosed busbar become and main-transformer; Wherein, The low-pressure side that said enclosed busbar is connected to said main-transformer is crossed in said genset outlet terminal, excitation unit, the accommodation of high factory, and the high-pressure side of said main-transformer is connected to electrical network; The accumulator system step-up transformer that said generator end system also comprises accumulator system and is used for boosting to accumulator system;
Said measurement mechanism comprises:
First measuring unit of exerting oneself is connected respectively with accumulator system with remote terminal unit through transmission equipment;
Second measuring unit of exerting oneself is connected respectively with genset with remote terminal unit through transmission equipment;
Remote terminal unit; Receive first data-signal of exerting oneself measuring unit respectively from first through said transmission equipment; From second exert oneself measuring unit second data-signal; Said first and second data-signal is merged processing, and what obtain the generator end system totally goes out force signal, totally goes out force signal and is uploaded to power network dispatching system said.
Wherein, said remote terminal unit, also be used for to from second exert oneself measuring unit second data-signal handle, with the result who handles out as the genset Control and Feedback signal of exerting oneself.
Wherein, said first measuring unit of exerting oneself is arranged between the high-pressure side of said enclosed busbar and accumulator system step-up transformer, and the access point of said enclosed busbar is positioned at the low-pressure side of said main-transformer.
Wherein, said first measuring unit of exerting oneself is arranged between the high-pressure side of low-pressure side that high factory becomes and accumulator system step-up transformer.
Wherein, said first measuring unit of exerting oneself can comprise: the current measuring unit that is used to measure accumulator system access point electric current; And the voltage measurement unit that is used to measure accumulator system access point voltage;
Said second measuring unit of exerting oneself can comprise the current measuring unit that is used to measure genset outlet electric current; And the voltage measurement unit that is used to measure genset outlet voltage.
Wherein, said first measuring unit of exerting oneself is the intelligent power table.
Wherein, said transmission equipment is Transmission Fibers, cable.
The embodiment of the invention also provides a kind of signal measurement method that is used for the generator end system; Said generator end system comprises that the genset, excitation unit, the high factory that are connected with enclosed busbar become and main-transformer; Wherein, The low-pressure side that said enclosed busbar is connected to said main-transformer is crossed in said genset outlet terminal, excitation unit, the accommodation of high factory, and the high-pressure side of said main-transformer is connected to electrical network; The accumulator system step-up transformer that said generator end system also comprises accumulator system and is used for boosting to accumulator system;
Said method comprises:
Collection is from first data-signal of accumulator system;
Collection is from second data-signal of genset;
Said first and second data-signal is merged processing, and what obtain the generator end system totally goes out force signal, totally goes out force signal and is uploaded to power network dispatching system said.
Wherein, handle, obtain second power signal of the current output of genset coming said second data-signal, with said second power signal as the genset Control and Feedback signal of exerting oneself.
Wherein, comprise voltage data and current data respectively in said first and second data-signal; Said first and second data-signal is merged processing, and the step that totally goes out force signal that obtains the generator end system comprises:
Calculate the first current power signal of accumulator system according to voltage data in said first data-signal and current data;
Calculate the second current power signal of genset according to voltage data in said second data-signal and current data;
Said first power signal and said second power signal are carried out addition, and what obtain the generator end system totally goes out force signal.
Wherein, comprise voltage data and current data respectively in said first and second data-signal, and the voltage data in said first and second data-signal is identical;
Said first and second data-signal is merged processing, and the step that totally goes out force signal that obtains the generator end system comprises:
With current data in said first data-signal and the current data addition in second data-signal, result data and the voltage data used after the addition multiply each other, and acquisition generator end system totally goes out force signal.
Wherein, comprise power data respectively in said first and second data-signal;
Said first and second data-signal is merged processing, and the step that totally goes out force signal that obtains the generator end system comprises:
With power data in said first data-signal and the power data addition in second data-signal, what obtain the generator end system totally goes out force signal.
Use the apparatus and method that the embodiment of the invention provided; Realized the independent measurement that accumulator system and genset are exerted oneself through newly-increased one group of measuring unit of exerting oneself; Avoid accumulator system to insert, realized that machine that accumulator system goes out force signal and original generator brings out the seamless fusion of force signal the exert oneself signal disturbance of control of genset.Simultaneously, avoided helping transformation to old factory because access point is selected to have caused the harmful effect to construction cost, engineering difficulty and duration.Reduced installation cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing wiring and signal flow diagram after power plant's original genset machine termination is gone into accumulator system;
Fig. 2 is a kind of signal measurement apparatus structural representation that is used for the generator end system according to the embodiment of the invention;
Fig. 3 is the signal measurement apparatus structural representation that is used for the generator end system according to the another kind of the embodiment of the invention;
Fig. 4 is the process flow diagram that is used for the signal measurement method of generator end system according to an embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The present invention is based on accumulator system and insert generator machine end and conventional electric generators parallel running, lifting generator end system is implemented in accumulator system access back the effective measurement that goes out force signal is handled with merging the response effect of electrical network instruction.
Be example with automatic generated energy control (AGC, Automatic Generation Control) below, prior art and the present invention are explained further details again.
In the existing production system of power generator group; Remote terminal unit RTU (Remote Terminal Unit); It is the tie that factory's net signal connects; Power network dispatching system is exerted oneself AGC to instruct and is issued to the RTU of power plant according to communication protocol on the one hand, and the RTU of power plant is handed down to director data the production control system control unit output of genset again; On the other hand, the RTU of power plant carries out acquisition process to the production data such as force signal that goes out of power generator group, and transmission feeds back to power network dispatching system, makes power network dispatching system can monitor production statuses such as exerting oneself of genset in real time.Through above-mentioned closed loop procedure, effective operation that the AGC that the realization genset is exported according to power network dispatching system exerts oneself and instructs.
After accumulator system inserts the Power Plant Side generator end; Need the machine of generator be brought out force signal and accumulator system goes out force signal and merges according to the electric access way and the energy exchange situation of reality; Form an actual data-signal of exerting oneself of reflection generator end overall system, to replace original unit output signal data that feeds back to power network dispatching system of uploading.On the other hand; Accumulator system goes out collection, the measurement of force signal and merges can not influence the control of genset production system to unit cleared-out power; Therefore the unit output signal of genset production system use should remain unchanged, and avoids the access of accumulator system to influence Power Plant control production.
Referring to Fig. 1, it is existing wiring and signal flow diagram after power plant's original genset machine termination is gone into accumulator system.Among Fig. 1, genset 10 outlet terminals are connected with main-transformer 30 low-pressure sides through main enclosed busbar 20, and electric signals such as the electric current of the 40 pairs of genset outlets of measuring unit of exerting oneself, voltage are measured; Above-mentioned measurement gained electric current, voltage signal connect optical fiber and deliver to the RTU of power plant 50 through signal transmitting device (figure does not show), communication, form to produce and use data.The RTU of power plant communication protocol by appointment; Genset is gone out force signal be uploaded to power network dispatching system; The production control system (like dcs (DCS), programmable logic controller (PLC) (PLC) etc.) of delivering to power plant self is simultaneously participated in the genset production control of exerting oneself.This part has constituted existing power generator machine end system.
As shown in Figure 1; The electric energy that accumulator system 80 will exchange after boosting through accumulator system step-up transformer 90 boosts to the electric pressure of main-transformer low-pressure side; Feeder cable and main transformer low-pressure side bus through special use achieve a butt joint, and this access point is the position between generator outlet end and machine end measurement point, also are that accumulator system is through the accumulator system step-up transformer; It is inboard to access to the original measurement point of machine end, the exert oneself left side of measuring unit 40 of its access as shown in Figure 1.After accumulator system inserted, the generator end overall system was exerted oneself and is exerted oneself by original genset, becomes the summation of exerting oneself of genset and accumulator system.
Wherein, The measuring unit 40 of exerting oneself is included near the current transformer CT in order to the collection current signal that installs the generator unit stator winding neutral point; And at enclosed busbar near the generating pusher side, excitation become 60 and high factory become the voltage transformer (VT) that is used to gather voltage (PT) that install certain position before 70 branch bars; Signal that this measuring unit 40 of exerting oneself is gathered is that genset outlet active power exerts oneself with accumulator system that (definition is discharged for just; Be charged as negative) with; Represent through power P that this exerts oneself with, calculating this power P by the RTU of power plant 50 is power P=UI, wherein; U is the magnitude of voltage that collects, and I is the current value that collects.
In the embodiment shown in fig. 1, excitation unit is become by excitation to be realized, in other possible embodiment, excitation unit also can be an exciter etc.
The signal that is uploaded to power network dispatching system in the such scheme can guarantee correctly; Genset is exerted oneself and accumulator system is exerted oneself but power plant's production control system can't be distinguished; The disturbance that causes accumulator system to exert oneself genset is exerted oneself and controlled; Can cause the vibration of unit output under the serious situation, influence unit safety operation.Simultaneously; Because the machine end measurement mechanism of generator such as the installation site of CT and PT are narrow and small to space, genset exit position; Accumulator system is installed in this narrow space, and very difficulty and cost are huge; Be unfavorable for transformation, possibly cause the decline significantly of unit reliability under the serious situation genset.
Referring to Fig. 2; It is a kind of signal measurement apparatus structural representation that is used for the generator end system according to the embodiment of the invention; Wherein, said generator end system comprises that the genset 10, excitation unit 60, the high factory that are connected with enclosed busbar 20 become 70 and main-transformer 30, wherein; Said genset 10 outlet terminals, excitation unit 60, high factory become 70 and are connected to the low-pressure side of said main-transformer 30 through said enclosed busbar, and the high-pressure side of said main-transformer 30 is connected to electrical network; The accumulator system step-up transformer 90 that said generator end system also comprises accumulator system 80 and is used for boosting to accumulator system; Said accumulator system accesses to the original measurement point outer fix of machine end through the accumulator system step-up transformer, also promptly insert second exert oneself measuring unit 42 the right side;
Said measurement mechanism comprises:
First measuring unit 41 of exerting oneself is connected respectively with accumulator system with remote terminal unit through transmission equipment;
Second measuring unit 42 of exerting oneself is connected respectively with genset with remote terminal unit through transmission equipment;
Need to prove, said remote terminal unit, also be used for to from second exert oneself measuring unit second data-signal handle, with the result who handles out as the genset Control and Feedback signal of exerting oneself.
When accumulator system is connected to enclosed busbar through the accumulator system step-up transformer; Said first measuring unit 41 of exerting oneself is arranged between the high-pressure side of said enclosed busbar and accumulator system step-up transformer; And the access point of said enclosed busbar is positioned at the low-pressure side of said main-transformer, and is as shown in Figure 2.That is to say; In the specific implementation; Above-mentioned first exerts oneself high-pressure side that measuring unit can be chosen in accumulator system step-up transformer among Fig. 2 is near the access point position that inserts bus (as scheming last 41 position), through means such as telescopic joints from accumulator system transformer high-voltage side bus connection PT cabinet and CT cabinet.
When accumulator system connected the low-pressure side that paramount factory becomes through the accumulator system step-up transformer, said first measuring unit 41 of exerting oneself is arranged between the high-pressure side of low-pressure side that high factory becomes and accumulator system step-up transformer, and was as shown in Figure 3.
In this application, in the high-pressure side of accumulator system access point, increased by one separately and exerted oneself measuring unit, specially voltage, the electric current of accumulator system outlet are monitored like first measuring unit of exerting oneself.And original measuring unit of exerting oneself is still just measured the voltage and current of genset outlet, so that to genset, accumulator system and the overall statistics respectively of exerting oneself.
Need to prove that above-mentioned transmission equipment is Transmission Fibers, cable etc.
Be appreciated that above-mentioned first measuring unit of exerting oneself can comprise: the current measuring unit such as the CT that are used to measure accumulator system access point electric current; And the voltage measurement unit such as the PT that are used to measure accumulator system access point voltage.Certainly, above-mentioned second measuring unit of exerting oneself can comprise current measuring unit such as the CT that is used to measure genset outlet electric current; And the voltage measurement unit such as the PT that are used to measure genset outlet voltage.
Need to prove; Above-mentioned first the exert oneself voltage transformer pt of measurement voltage signal in the measuring unit can be selected 20kv grade (or the grade that is complementary with generator machine end busbar voltage grade) for use, and the current transformer CT that measures current signal can select the bidirectional current mutual inductor that can measure alternating current for use.The measuring accuracy of above-mentioned device should reach power network dispatching system to going out the measuring accuracy requirement of force signal.
Above-mentioned first and second exerted oneself, and measuring unit is measured the gained electric current, voltage signal passes through the signal transmitting device, and communication connects optical fiber and inserts the RTU of power plant telesignalisation passage.The concrete realization of above-mentioned transmitter, connection optical fiber and the access RTU of power plant telesignalisation passage is prior art, no longer specifies at this.
In embodiment illustrated in fig. 2, excitation unit is become by excitation to be realized, in practical application, excitation unit also can be an exciter etc.The application does not do qualification to the concrete implementation of excitation unit.
In power plant RTU backstage, utilize software that the voltage that collects, current data are calculated as follows:
A) calculate the P that exerts oneself in real time of accumulator system
ESS, the exerting oneself in real time of accumulator system
P
ESS＝U
ESS*I
ESS
Wherein, U
ESSAnd I
ESSBe respectively the voltage data and the current data of exerting oneself measuring unit from first.
B) P that exerts oneself in real time of calculating generator unit
PLANT, genset exert oneself in real time into
P
PLANT＝U
PLANT*I
PLANT
Wherein, U
PLANT* I
PLANTBe respectively the voltage data and the current data of exerting oneself measuring unit from second.
C) the calculating generator group exert oneself in real time exert oneself in real time with accumulator system with, it is gone out force signal P as the generator end overall system
SUM
P
SUM＝P
ESS+P
PLANT
This totally goes out force signal P
SUMBe uploaded to power network dispatching system, realize effective monitoring and scheduling that power network dispatching system is exerted oneself to overall system.
Above-mentioned A, B, C calculate not strict sequencing for three kinds, for example, can totally go out force signal P by first calculating generator end system fully
SUM, calculate the P that exerts oneself in real time of accumulator system again
ESS
Need to prove that the machine end of the applied generator of accumulator system among the application embodiment can be fired power generating unit, Hydropower Unit, wind power generating set, gas turbine group etc.
Need to prove; During the power dispatching class that accumulator system among the application embodiment can be applied in various active power and/or reactive power is used, as comprise that AGC uses, frequency modulation is used, the wind power generating set output power is smoothly used, unit output error compensation is used, rotation back-up application etc.
Need to prove that the accumulator system among the application embodiment can be made up of all types of battery energy storage systems, as being lithium battery, sodium-sulphur battery, flow battery etc., perhaps, can also be to be made up of flywheel energy storage system.In this application, do not limit the number and the kind of accumulator system, in above-mentioned arbitrary embodiment, said accumulator system can be made up of an energy storage device, perhaps is made up of many groups, the parallel connection of polymorphic type energy storage device.
Need to prove; The access point that accumulator system described in the application embodiment is used at generator machine end is included in generator outlet end enclosed busbar to all satisfy the feasible access point of capacity requirement between the step-up transformer low-pressure side; For example can comprise that generator machine end bus, high factory become, the change low-pressure side of boosting, and the step-up transformer high-pressure side.
Need to prove that in the application embodiment, accumulator system is not done qualification in the concrete access way of generator machine end, any possible access way can be applied to the present invention, for example, Fig. 2 is exactly two kinds of different access waies with Fig. 3.Under mode shown in Figure 3, measure accumulator system exert oneself measuring unit promptly first exert oneself measuring unit the installation site can be chosen between accumulator system step-up transformer and high factory of the power plant change.Owing to need not open generator machine end enclosed busbar, reduced the difficult installation and the construction cost of accumulator system measuring unit, but the reduction of the electric pressure of measurement point can influence the measuring accuracy that accumulator system is exerted oneself simultaneously because accumulator system is exerted oneself.
Need to prove that aforementioned first and second measuring unit of exerting oneself can be replaced by other intelligent measure unit that satisfy precision and installation environment requirement, for example intelligent power table etc.Under the different measuring unit parts selection situation of exerting oneself, desired signal transmitter and Transmission Fibers can be replaced by the signal transmitting of responses match, amplification, transmission equipment, concrete require same prior art.
Need to prove, aforementionedly comprise multiple to said first and second data-signal being merged processing (promptly the merging of accumulator system and unit output signal being exerted oneself) mode on power plant RTU backstage:
A kind of possible mode is, at first respectively exert oneself voltage, current signal of accumulator system and genset carried out that product obtains accumulator system and genset active power is exerted oneself, and then both additions obtained the generator end overall system and exerts oneself;
Another kind of possible mode is; When accumulator system and genset voltage measurement point are an equivalent point (situation as shown in Figure 2); Can earlier accumulator system be measured current signal and the addition of genset current signal; Obtain generator end overall system current signal, with measurement genset voltage signal product, obtain generator end overall system active power signal then;
Another possible mode is that methods such as employing cycle integrated method, vector product or effective value product method calculate accumulator system in real time and genset is exerted oneself in real time.
That is to say that among the application, concrete computing method are not done qualification, any possible computing method can be applied among the present invention.
A kind of alternative mode is; First the exert oneself signal of measuring unit 42 of measuring unit 41 and second of exerting oneself can realize that signal merges through the transmitter link; Promptly realize that through hardware mode unit output and accumulator system go out the stack merging of force signal, but it calculates principle and software realizes it being duplicate.
Need to prove; In practical application; Will be when calculating the exerting oneself in real time of accumulator system according to the range of sensor; Be input to the transmitter output current scope of the RTU of power plant, the range of current of single/two-way and meritorious transmitter output etc. is carried out correct scale coefficient of alienation configuration in the RTU daemon software, and guaranteeing exerts oneself in real time can correctly reflect reality.
Use the device that the embodiment of the invention provided; Realized the independent measurement that accumulator system and genset are exerted oneself through newly-increased one group of measuring unit of exerting oneself; Avoid accumulator system to insert, realized that machine that accumulator system goes out force signal and original generator brings out the seamless fusion of force signal the exert oneself signal disturbance of control of genset.Simultaneously, avoided helping transformation to old factory because access point is selected to have caused the harmful effect to construction cost, engineering difficulty and duration.Reduced installation cost.
Participate in Fig. 4; It is the process flow diagram that is used for the signal measurement method of generator end system according to an embodiment of the invention; The said method of present embodiment is based on Fig. 2 or the said device of Fig. 3; Concrete, the generator end system in the present embodiment comprises that the genset, excitation unit, the high factory that are connected with enclosed busbar become and main-transformer, wherein; The low-pressure side that said enclosed busbar is connected to said main-transformer is crossed in said genset outlet terminal, excitation unit, the accommodation of high factory, and the high-pressure side of said main-transformer is connected to electrical network; The accumulator system step-up transformer that said generator end system also comprises accumulator system and is used for boosting to accumulator system; Said method comprises:
Step 401 is gathered first data-signal from accumulator system;
Step 402 is gathered second data-signal from genset;
Step 403 merges processing to said first and second data-signal, and what obtain the generator end system totally goes out force signal, totally goes out force signal and is uploaded to electrical network said.
Wherein, handle, obtain second power signal of the current output of genset coming said second data-signal, with said second power signal as the genset Control and Feedback signal of exerting oneself.
A kind of possible situation is to comprise voltage data and current data respectively in said first and second data-signal; At this moment, said first and second data-signal is merged processing, the step that totally goes out force signal that obtains the generator end system comprises:
Calculate the first current power signal of accumulator system according to voltage data in said first data-signal and current data;
Calculate the second current power signal of genset according to voltage data in said second data-signal and current data;
Said first power signal and said second power signal are carried out addition, and what obtain the generator end system totally goes out force signal.
Another kind of possible situation is comprise voltage data and current data respectively in said first and second data-signal, and the voltage data in said first and second data-signal to be identical; At this moment, said first and second data-signal is merged processing, the step that totally goes out force signal that obtains the generator end system comprises:
With current data in said first data-signal and the current data addition in second data-signal, result data and the voltage data used after the addition multiply each other, and acquisition generator end system totally goes out force signal.
Another possible situation is to comprise power data respectively in said first and second data-signal; At this moment, said first and second data-signal is merged processing, the step that totally goes out force signal that obtains the generator end system comprises:
With power data in said first data-signal and the power data addition in second data-signal, what obtain the generator end system totally goes out force signal.
Use the method that the embodiment of the invention provided; Through the independent measurement that accumulator system and genset are exerted oneself; Avoided accumulator system to insert, realized that machine that accumulator system goes out force signal and original generator brings out the seamless fusion of force signal the exert oneself signal disturbance of control of genset.Simultaneously, avoided helping transformation to old factory because access point is selected to have caused the harmful effect to construction cost, engineering difficulty and duration.Reduced installation cost.
For method embodiment, because it is basically similar in appearance to device embodiment, so description is fairly simple, relevant part gets final product referring to the explanation of method embodiment.
Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the said method embodiment is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium; Here the alleged storage medium that gets, as: ROM/RAM, magnetic disc, CD etc.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (12)
1. signal measurement apparatus that is used for the generator end system; It is characterized in that; Said generator end system comprises that the genset, excitation unit, the high factory that are connected with enclosed busbar become and main-transformer; Wherein, the low-pressure side that said enclosed busbar is connected to said main-transformer is crossed in said genset outlet terminal, excitation unit, the accommodation of high factory, and the high-pressure side of said main-transformer is connected to electrical network; The accumulator system step-up transformer that said generator end system also comprises accumulator system and is used for boosting to accumulator system;
Said measurement mechanism comprises:
First measuring unit of exerting oneself is connected respectively with accumulator system with remote terminal unit through transmission equipment;
Second measuring unit of exerting oneself is connected respectively with genset with remote terminal unit through transmission equipment;
Remote terminal unit; Receive first data-signal of exerting oneself measuring unit respectively from first through said transmission equipment; From second exert oneself measuring unit second data-signal; Said first and second data-signal is merged processing, and what obtain the generator end system totally goes out force signal, totally goes out force signal and is uploaded to power network dispatching system said.
2. signal measurement apparatus according to claim 1 is characterized in that,
Said remote terminal unit, also be used for to from second exert oneself measuring unit second data-signal handle, with the result who handles out as the genset Control and Feedback signal of exerting oneself.
3. signal measurement apparatus according to claim 1; It is characterized in that; Said first measuring unit of exerting oneself is arranged between the high-pressure side of said enclosed busbar and accumulator system step-up transformer, and the access point of said enclosed busbar is positioned at the low-pressure side of said main-transformer.
4. signal measurement apparatus according to claim 1 is characterized in that, said first measuring unit of exerting oneself is arranged between the high-pressure side of low-pressure side that high factory becomes and accumulator system step-up transformer.
5. signal measurement apparatus according to claim 1 is characterized in that,
Said first measuring unit of exerting oneself can comprise: the current measuring unit that is used to measure accumulator system access point electric current; And the voltage measurement unit that is used to measure accumulator system access point voltage;
Said second measuring unit of exerting oneself can comprise the current measuring unit that is used to measure genset outlet electric current; And the voltage measurement unit that is used to measure genset outlet voltage.
6. signal measurement apparatus according to claim 1 is characterized in that, said first measuring unit of exerting oneself is the intelligent power table.
7. signal measurement apparatus according to claim 1 is characterized in that, said transmission equipment is Transmission Fibers, cable.
8. signal measurement method that is used for the generator end system; It is characterized in that; Said generator end system comprises that the genset, excitation unit, the high factory that are connected with enclosed busbar become and main-transformer; Wherein, the low-pressure side that said enclosed busbar is connected to said main-transformer is crossed in said genset outlet terminal, excitation unit, the accommodation of high factory, and the high-pressure side of said main-transformer is connected to electrical network; The accumulator system step-up transformer that said generator end system also comprises accumulator system and is used for boosting to accumulator system;
Said method comprises:
Collection is from first data-signal of accumulator system;
Collection is from second data-signal of genset;
Said first and second data-signal is merged processing, and what obtain the generator end system totally goes out force signal, totally goes out force signal and is uploaded to power network dispatching system said.
9. method according to claim 8 is characterized in that,
To coming said second data-signal to handle, obtain second power signal of the current output of genset, with said second power signal as the genset Control and Feedback signal of exerting oneself.
10. method according to claim 8 is characterized in that,
Comprise voltage data and current data respectively in said first and second data-signal;
Said first and second data-signal is merged processing, and the step that totally goes out force signal that obtains the generator end system comprises:
Calculate the first current power signal of accumulator system according to voltage data in said first data-signal and current data;
Calculate the second current power signal of genset according to voltage data in said second data-signal and current data;
Said first power signal and said second power signal are carried out addition, and what obtain the generator end system totally goes out force signal.
11. method according to claim 8 is characterized in that,
Comprise voltage data and current data respectively in said first and second data-signal, and the voltage data in said first and second data-signal is identical;
Said first and second data-signal is merged processing, and the step that totally goes out force signal that obtains the generator end system comprises:
With current data in said first data-signal and the current data addition in second data-signal, result data and the voltage data used after the addition multiply each other, and acquisition generator end system totally goes out force signal.
12. method according to claim 8 is characterized in that,
Comprise power data respectively in said first and second data-signal;
Said first and second data-signal is merged processing, and the step that totally goes out force signal that obtains the generator end system comprises:
With power data in said first data-signal and the power data addition in second data-signal, what obtain the generator end system totally goes out force signal.
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Application publication date: 20121219 Assignee: Beijing Haibo Sichuang Technology Co.,Ltd. Assignor: RAY POWER SYSTEMS CO.,LTD. Contract record no.: X2022990000842 Denomination of invention: A Signal Measuring Device and Method for Generator Terminal System Granted publication date: 20150708 License type: Common License Record date: 20221028 |